The loginctl program is part of the systemd set of utilities that allow you to manage your system. It allows you to manage current user sessions, view the list of active users, lock the screen or interrupt sessions altogether, and terminate user processes.
While connecting to a remote desktop connection (RDP), users encounter a problem such as a black screen. Most often, this problem is due to the fact that the session has simply hung. You may have noticed that a session hangs when you can't log out of your login, or simply when the RDP window closes, sometimes justifiably so that you can reconnect quickly.
In the last article we described how to compress JPEG images. Now we will tell you how to solve a similar problem, but already in relation to pictures with PNG format. PNG is a very popular picture extension. The format was developed as a replacement for GIF. The size of PNG pictures is often very different in terms of color depth, interlacing, as well as due to a certain compression algorithm.
You may have a lot of images on your computer and they take up an inordinate amount of space, is there anything you can do about it? For example, compress them without loss of quality. Compression may also be very appropriate if you are uploading a batch of images to a cloud server.
In this article, we will tell you how to work with variables and structures. This is especially useful material for novice users. Recall that the language has static typing. In Python, Ruby or JavaScript you will have to perform several correctness checks. Go avoids this problem.
Beautiful landscapes are one of the best options for desktop wallpapers. We have already published a series of images, we continue this tradition with another dozen of colorful images in high resolution